C# Coding Solutions—Closure Functor

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The Closure Functor

The idea behind the closure functor is to be able to add an extra processing step when a specific logic is executed. For example, let’s say that for a collection it is necessary to assign a parent-child relationship. When an object is added to a collection, a closure functor would assign the parent to the child object. A closure functor could also be used to perform logging operations. The following is the definition of the closure delegate:

public delegate void DelegateClosure< type>( type input);

The delegate DelegateClosure<> uses Generics to define the input parameter, which represents the object to be manipulated. In the example of the running total, a closure functor would be used and not explained any further